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GPU Miner on new Mac Pro: just one GPU being used
Hi there, how do I enable both GPU's to mine on the new Mac Pro? Both GPU's are detected by GPU Miner (D700 OCL0 and D700 OCL1), but mining only happens on one of them. Also, it appears to happen on OCL1 which is the GPU attached to the display outputs, so UI is sluggish at higher intensities.
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After looking at the API window, it appears to be using both GPU's, however at about half the rate I'd expect for intensity 18.
[2014-03-02 12:05:39] Started bfgminer 3.10.0
[2014-03-02 12:05:39] Loaded configuration file /Users/xxx/Library/Application Support/MacMiner/ltcurls.conf
[2014-03-02 12:05:39] CL Platform 0 vendor: Apple
[2014-03-02 12:05:39] CL Platform 0 name: Apple
[2014-03-02 12:05:39] CL Platform 0 version: OpenCL 1.2 (Dec 8 2013 21:07:05)
[2014-03-02 12:05:39] Platform 0 devices: 2
[2014-03-02 12:05:39] 0 AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:39] 1 AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:39] Unable to load ati adl library
[2014-03-02 12:05:39] Probing for an alive pool
[2014-03-02 12:05:39] Testing pool http://global.wemineltc.com:3334
[2014-03-02 12:05:40] HTTP request failed: Recv failure: Connection reset by peer
[2014-03-02 12:05:40] HTTP request failed: Recv failure: Connection reset by peer
[2014-03-02 12:05:41] Stratum authorisation success for pool 0
[2014-03-02 12:05:41] Pool 0 http://global.wemineltc.com:3334 alive
[2014-03-02 12:05:41] Init GPU thread 0 GPU 0 virtual GPU 0
[2014-03-02 12:05:41] CL Platform vendor: Apple
[2014-03-02 12:05:41] CL Platform name: Apple
[2014-03-02 12:05:41] CL Platform version: OpenCL 1.2 (Dec 8 2013 21:07:05)
[2014-03-02 12:05:41] List of devices:
[2014-03-02 12:05:41] 0 AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:41] 1 AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:41] Selected 0: AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:41] Selecting scrypt kernel
[2014-03-02 12:05:41] Initialising kernel scrypt130511.cl without bitalign, 1 vectors and worksize 256
[2014-03-02 12:05:41] initCl() finished. Found AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:41] Init GPU thread 1 GPU 1 virtual GPU 1
[2014-03-02 12:05:41] CL Platform vendor: Apple
[2014-03-02 12:05:41] CL Platform name: Apple
[2014-03-02 12:05:41] CL Platform version: OpenCL 1.2 (Dec 8 2013 21:07:05)
[2014-03-02 12:05:41] List of devices:
[2014-03-02 12:05:41] 0 AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:41] 1 AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:41] Selected 1: AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:41] Network difficulty changed to 3.15k (22.52Gh/s)
[2014-03-02 12:05:41] New block: ...ef94b8f2 #523739 diff 3.15k (22.52Gh/s)
[2014-03-02 12:05:41] Stratum from pool 0 detected new block
[2014-03-02 12:05:41] Pool 0 is hiding block contents from us
[2014-03-02 12:05:41] Selecting scrypt kernel
[2014-03-02 12:05:41] Initialising kernel scrypt130511.cl without bitalign, 1 vectors and worksize 256
[2014-03-02 12:05:41] initCl() finished. Found AMD Radeon HD - FirePro D700 Compute Engine
[2014-03-02 12:05:41] -1 cpu miner threads started, using SHA256 'scrypt' algorithm.
[2014-03-02 12:05:41] API running in IP access mode on port 4052
[2014-03-02 12:05:39] Started bfgminer 3.10.0
[2014-03-02 12:05:39] Loaded configuration file /Users/xxx/Library/Application Support/MacMiner/ltcurls.conf
[2014-03-02 12:05:39] Probing for an alive pool
[2014-03-02 12:05:41] Pool 0 http://global.wemineltc.com:3334 alive
[2014-03-02 12:05:41] Network difficulty changed to 3.15k (22.52Gh/s)
[2014-03-02 12:05:41] Stratum from pool 0 detected new block
[2014-03-02 12:05:41] Pool 0 is hiding block contents from us
[2014-03-02 12:05:41] API running in IP access mode on port 4052
5s:181.3 avg:466.0 u: 0.0 kh/s | A:0 R:0+0(none) HW:0/none
5s:303.8 avg:478.5 u: 0.0 kh/s | A:0 R:0+0(none) HW:0/none
5s:404.2 avg:505.6 u: 0.0 kh/s | A:0 R:0+0(none) HW:0/none
5s:425.5 avg:493.9 u: 0.0 kh/s | A:0 R:0+0(none) HW:0/none
5s:478.1 avg:507.1 u: 0.0 kh/s | A:0 R:0+0(none) HW:0/none
5s:510.2 avg:515.9 u: 0.0 kh/s | A:0 R:0+0(none) HW:0/none